Weller reflash and HMF exhaust
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Weller reflash and HMF exhaust

This is a discussion on Weller reflash and HMF exhaust within the Wolverine X2/X4 General Discussion forums, part of the Yamaha Wolverine X2 & X4 847cc SxS category; I did the reflash to lower the engine temp. But the added torque I noticed makes for a better ride. Sound may even be quieter ...

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Thread: Weller reflash and HMF exhaust

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    Couch Potato
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    Weller reflash and HMF exhaust

    I did the reflash to lower the engine temp. But the added torque I noticed makes for a better ride. Sound may even be quieter at mid speed. Happy with the results. Happy Easter
    2019 Yamaha x2 camo. ITP Mud Lite II 27x9-12 and 27x11-12 tires , Super atv flip up windshield. Custom roll up back window. Warn provantage 3500 winch. Weller ecu reflash. HMF exhaust.

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    Pit Stop
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    How is the noise level overall compared to stock?

    Sent from my SM-G892A using Tapatalk
    wolvymanx4 likes this.

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    Pit Stop DWRAT's Avatar
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    Do you need to run 91 octane gas now?
    2019 X2 SE Black
    29x9-14 all around.

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    Couch Potato
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    The sound at idle is a deeper tone. Driving 30-50 km/hr seems quieter. That may be do to the engine breathing better. Only louder if your on the gas hard but not an annoying level.
    I have always run 91 octane from shell in my atvs. Weller racing on there web site recommends 91.
    wolvymanx4 likes this.
    2019 Yamaha x2 camo. ITP Mud Lite II 27x9-12 and 27x11-12 tires , Super atv flip up windshield. Custom roll up back window. Warn provantage 3500 winch. Weller ecu reflash. HMF exhaust.

  6. #5
    Super Moderator MassiveOverkill's Avatar
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    I can second it being quieter during cruising. My vids of before/after: https://www.wolverineforums.com/foru...ust-x2-x4.html
    wolvymanx4 likes this.
    2018 Blue Wolverine X4
    First Wolverine X4 to break the 60 MPH barrier
    Hunterworks prototype sheave with easy cleanout port, 22 gram HV weights
    Weller Racing ECU flash
    HMF Titan Series Quiet slip-on Exhaust
    Swiss-cheesed airbox lid
    Tinkseal additives
    STI HD beadlocks wearing Tusk Terrabite 27x9x12 tires
    OEM windshield, soft cab, and roof
    OEM skid plates
    OEM rock sliders
    OEM A-arm guards
    OEM cargo box

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    Rocket Wolvie Hunter's Avatar
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    Do they offer the same for the Wolverine R-Spec also?
    Wolvie Hunter

    Yamaha - 2016 Wolverine R-Spec EPS Hunter Edition, Folding Front Windshield, Rear Window, Cargo Bed Box, YXZ Steering Wheel
    Warn - Vantage 3000 Winch & Cover
    Sedona - Storm 14" Aluminum Wheels, Rip-Saw R/T Radial ATV Tires 27x9-14 and 27x11-14, w/ Spare
    Assault - Center Mount Mirror
    Seizmik - Side Mirrors
    EMP - Front & Rear Bumpers, CV Guards
    Super ATV - 2" Lift Kit
    Rigidhorse - 19" Tri-Row LED Light Bar
    Concours - Wolverine Switch Panel
    Battery Tender
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    Couch Potato
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    They have the ecu reflash for yamaha x2 x4 and the yxz only.
    MassiveOverkill likes this.
    2019 Yamaha x2 camo. ITP Mud Lite II 27x9-12 and 27x11-12 tires , Super atv flip up windshield. Custom roll up back window. Warn provantage 3500 winch. Weller ecu reflash. HMF exhaust.

  9. #8
    Rocket Wolvie Hunter's Avatar
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    Quote Originally Posted by North x2 View Post
    They have the ecu reflash for yamaha x2 x4 and the yxz only.


    Thank you for responding.
    Wolvie Hunter

    Yamaha - 2016 Wolverine R-Spec EPS Hunter Edition, Folding Front Windshield, Rear Window, Cargo Bed Box, YXZ Steering Wheel
    Warn - Vantage 3000 Winch & Cover
    Sedona - Storm 14" Aluminum Wheels, Rip-Saw R/T Radial ATV Tires 27x9-14 and 27x11-14, w/ Spare
    Assault - Center Mount Mirror
    Seizmik - Side Mirrors
    EMP - Front & Rear Bumpers, CV Guards
    Super ATV - 2" Lift Kit
    Rigidhorse - 19" Tri-Row LED Light Bar
    Concours - Wolverine Switch Panel
    Battery Tender
    Grab Handles

  10. #9
    Supporting Vendor Hunterworks's Avatar
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    Quote Originally Posted by Wolvie Hunter View Post
    Do they offer the same for the Wolverine R-Spec also?
    The 708 just needs the power commander and there is a HMF too

    https://www.hunterworks.com/yamaha_wolverine


    Todd
    Todd Eldridge
    Hunterworks Inc
    [email protected]
    601-771-0070

  11. #10
    Rocket Wolvie Hunter's Avatar
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    Quote Originally Posted by Hunterworks View Post
    The 708 just needs the power commander and there is a HMF too

    https://www.hunterworks.com/yamaha_wolverine


    Todd
    I'm curious how many of the HMF's are sold and what the reviews are.
    Wolvie Hunter

    Yamaha - 2016 Wolverine R-Spec EPS Hunter Edition, Folding Front Windshield, Rear Window, Cargo Bed Box, YXZ Steering Wheel
    Warn - Vantage 3000 Winch & Cover
    Sedona - Storm 14" Aluminum Wheels, Rip-Saw R/T Radial ATV Tires 27x9-14 and 27x11-14, w/ Spare
    Assault - Center Mount Mirror
    Seizmik - Side Mirrors
    EMP - Front & Rear Bumpers, CV Guards
    Super ATV - 2" Lift Kit
    Rigidhorse - 19" Tri-Row LED Light Bar
    Concours - Wolverine Switch Panel
    Battery Tender
    Grab Handles

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